Watch Virtual Life Grow in repsim

You can simulated life evolve in a tank of randomly generated replicators called reps.

Each of five different types has a different colors and unique characteristics. For example, a red rep attacks and feeds when they hit another rep while a green rep will generated health every second.

Before the new tank sim is started, you can adjust the characteristics of each rep.

When it’s time to begin, you’ll fill a tank with reps and watch the magic happen. You can even save reps in one tank and spawn them in other with new settings.

An extensive tutorial details the finer points of the app. And as a fun treat, the app features original music tracks with wildly different moods. A track can be skipped if it’s not your taste.

For all iPad models, repsim can be downloaded on the App Store now for $3.99.